<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
<meta name="description" content="" />

<style type="text/css">
*{margin:0;padding:0;}
body{font-size:12px;color:#222;font-family:Verdana,Arial,Helvetica,sans-serif;background:#f0f0f0;}
.clearfix:after{content: ".";display: block;height: 0;clear: both;visibility: hidden;}
.clearfix{zoom:1;}
ul,li{list-style:none;}
img{border:0;}
.wrapper{width:800px;margin:0 auto;padding-bottom:0px;}
/* focus */
#focus{width:800px;height:600px;overflow:hidden;position:relative;text-align:center;}
#focus ul{height:380px;position:absolute;}
#focus ul li{float:left;width:800px;height:600px;overflow:hidden;position:relative;background:#000;}
#focus ul li div{position:absolute;overflow:hidden;}
#focus .btnBg{position:absolute;width:800px;height:20px;left:0;bottom:0;background:#000;}
#focus .btn{position:absolute;width:780px;height:10px;padding:5px 10px;right:0;bottom:0;text-align:right;}
#focus .btn span{display:inline-block;_display:inline;_zoom:1;width:25px;height:10px;_font-size:0;margin-left:5px;cursor:pointer;background:#fff;}
#focus .btn span.on{background:#fff;}
#focus .preNext{width:45px;height:100px;position:absolute;top:200px;background:url(../../../images/sprite.png) no-repeat 0 0;cursor:pointer;}
#focus .pre{left:0;}
#focus .next{right:0;background-position:right top;}
</style>
<script type="text/javascript" src=<?php echo base_url()."jquery.js"; ?> ></script>
<script type="text/javascript">
$(function() {
	var sWidth = $("#focus").width(); //获取焦点图的宽度（显示面积）
	var len = $("#focus ul li").length; //获取焦点图个数
	var index = 0;
	var picTimer;
	
	//以下代码添加数字按钮和按钮后的半透明条，还有上一页、下一页两个按钮
	var btn = "<div class='btnBg'></div><div class='btn'>";
	for(var i=0; i < len; i++) {
		btn += "<span></span>";
	}
	btn += "</div><div class='preNext pre'></div><div class='preNext next'></div>";
	$("#focus").append(btn);
	$("#focus .btnBg").css("opacity",0.5);

	//为小按钮添加鼠标滑入事件，以显示相应的内容
	$("#focus .btn span").css("opacity",0.4).mouseover(function() {
		index = $("#focus .btn span").index(this);
		showPics(index);
	}).eq(0).trigger("mouseover");

	//上一页、下一页按钮透明度处理
	$("#focus .preNext").css("opacity",0.2).hover(function() {
		$(this).stop(true,false).animate({"opacity":"0.5"},300);
	},function() {
		$(this).stop(true,false).animate({"opacity":"0.2"},300);
	});

	//上一页按钮
	$("#focus .pre").click(function() {
		index -= 1;
		if(index == -1) {index = len - 1;}
		showPics(index);
	});

	//下一页按钮
	$("#focus .next").click(function() {
		index += 1;
		if(index == len) {index = 0;}
		showPics(index);
	});

	//本例为左右滚动，即所有li元素都是在同一排向左浮动，所以这里需要计算出外围ul元素的宽度
	$("#focus ul").css("width",sWidth * (len));
	
	//鼠标滑上焦点图时停止自动播放，滑出时开始自动播放
	$("#focus").hover(function() {
		clearInterval(picTimer);
	},function() {
		picTimer = setInterval(function() {
			showPics(index);
			index++;
			if(index == len) {index = 0;}
		},4000); //此4000代表自动播放的间隔，单位：毫秒
	}).trigger("mouseleave");
	
	//显示图片函数，根据接收的index值显示相应的内容
	function showPics(index) { //普通切换
		var nowLeft = -index*sWidth; //根据index值计算ul元素的left值
		$("#focus ul").stop(true,false).animate({"left":nowLeft},300); //通过animate()调整ul元素滚动到计算出的position
		//$("#focus .btn span").removeClass("on").eq(index).addClass("on"); //为当前的按钮切换到选中的效果
		$("#focus .btn span").stop(true,false).animate({"opacity":"0.4"},300).eq(index).stop(true,false).animate({"opacity":"1"},300); //为当前的按钮切换到选中的效果
	}
});

</script>
</head>

<body>
	<div class="wrapper">
		<div id="focus">
			<ul>
		  <?php
		  	$files = explode(";", $row->files);
		
		  	for ($i = 0; $i < count($files); $i++)
		  	{
		  		if (!strcmp($files[$i], ""))
		  		{
		  			continue;	
		  		}
		  		
		  		if (!preg_match('/\.(gif|jpg|png|bmp)$/i', $files[$i]))
		  		{
		  			continue;
		  		}
		
		  		$fileurl = base_url().$this->load->get_var('uploaddir')."/$files[$i]";
		  				  		
		  		echo '<li><a target="_blank" href="'.$fileurl.'"><img style="max-width:95%;max-height:95%;" src="'.$fileurl.'" /></a></li>';
		  	}
		  ?>
			</ul>
		</div><!--focus end-->
	</div><!-- wrapper end -->
</body>
</html>